Question

factorise 7 a cube + 56 b cube​

Answer 1

I think it is a right answer

Answer 2

7a cube +56 b cube = (a+b)(a^2- ab+ b^2)

(7a+5b)[(7a) ^2- 7a*5b+(5b)^2]

(7a+5b)(49a^2-35ab+25b^)